UNI-T UT205A Operating Manual page 24

3. For continuity test:
a. Press SELECT to switch between Diode and Continuity test.
b. Connect the test lead to the two end of the circuit under test.
c. The buzzer sounds if the resistance of a circuit under test is less than 100 .
Note
In a circuit, a good diode should still produce a forward voltage drop reading of
0.5V to 0.8V; however, the reverse-voltage drop reading can vary depending on
the resistance of other pathways between the probe tips.
Connect the test leads to the proper terminals as said above to avoid error display.
The LCD will display OL indicating diode being tested is open or polarity is reversed.
The unit of diode is Volt (V), displaying the forward voltage drop readings.
When diode and continuity testing has been completed, disconnect the connection
between the testing leads and the circuit under test, and remove the testing leads
away from the input terminals of the Meter.
Model UT205A/206A: OPERATING MANUAL
24